ORA-30013

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-00603: ORACLE server session terminated by fatal error
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-30013: undo tablespace 'UNDOTBS2' is currently in use
Process ID: 213263
Session ID: 6198 Serial number: 16174

RAC集群节点一实例启动报错，报错原因是参数文件testdb1.undo_tablespace='UNDOTBS2'

解决：
1.节点一创建文本参数文件
SQL> create pfile='/tmp/testdb.ora' from spfile;

File created.

2.修改文本参数文件
testdb1.undo_tablespace='UNDOTBS1'
testdb2.undo_tablespace='UNDOTBS2'

3.创建spfile到ASM磁盘
SQL> create spfile='+TESTDB' from pfile='/tmp/testdb.ora';

File created.

4.关闭所有节点实例

5.以新的spfile启动实例即可